DongBo Chain became the first chain & sprocket manufacturer
in Korea who acquired KS Certificate applicable to power
transmission roller chain. Advancing steadily, we have
been approved by LLOYD's Register Quality Assurance to
ISO 9002 in 1995, and to ISO 9001:2000 in 2002 for overall
quality management system of design, development, manufacturing,
installation and after sales service. We DBC take these
for parts of fruits drew by quality priority principle
continued for more than 40 years.
Our ultimate philosophy of Quality Assurance is 'Customers'
requests decide our quality standard', which starts from
a principle that 'customers' expectations to DBC only
can lead us to a bright future'.
Our utmost aim both at products and at company organization
is pointed to Quality which does not only mean quality
of the product but also does that of extensive properties
such as professional advice, fully satisfactory after-sales
service, supplying products with the most competitive
and reasonable pricing.

Our fundamental policy Producing
the most qualified chain used in all the industrial fields'lasts
as our first and final goal unchanged in the past, at
present and in the future.
We never pass over even a minor point in quality assurance.

All the production procedures from selecting raw material
to producing components, assembly, heat treatment and
to completing are repeatedly inspected & computerized
so that recorded & verified. A close inspection enable
each procedure to allow qualified products only to be
passed and it assures of the maintenance.

Up-to-date measuring and experimental machines/tools
we possess are being a guideline of strict quality standard
management.

Passed strict quality tests, DBC chain is armed with
high grade of fatigue strength and tensile strength(even
better than Korean Standard's by up to 30%).